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Hemoglobin is a protein found in red blood cells responsible for transporting oxygen from the lungs to tissues and facilitating the return of carbon dioxide from tissues to the lungs. It consists of four subunits, each containing an iron atom that binds to oxygen, allowing for efficient gas exchange. Hemoglobin plays a crucial role in maintaining the body's oxygen supply and overall metabolic function. Abnormalities in hemoglobin can lead to various blood disorders, such as anemia or sickle cell disease.

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2d ago

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